May 6, 2025
Meta releases LlamaFirewall guardrails with PromptGuard 2 and AlignmentCheck for agents
Meta open-sources LlamaFirewall, combining PromptGuard 2 (a jailbreak and injection detector), AlignmentCheck (a chain-of-thought auditor for goal hijacking) and CodeShield (static analysis of generated code). On AgentDojo, Meta reports that the combination cut attack success from 17.63% to 1.75% while utility fell from 47.73% to 42.68%.